package com.carter.springframework.beans.factory.support;

import cn.hutool.core.lang.Assert;
import com.carter.springframework.beans.BeanMetadataAttributeAccessor;
import com.carter.springframework.beans.MutablePropertyValues;
import com.carter.springframework.beans.factory.config.AutowireCapableBeanFactory;
import com.carter.springframework.beans.factory.config.CarterBeanDefinition;

import com.carter.springframework.beans.factory.config.ConstructorArgumentValues;
import com.carter.springframework.core.ResolvableType;
import com.carter.springframework.core.io.DescriptiveResource;
import com.carter.springframework.core.io.Resource;
import com.carter.springframework.util.ClassUtils;
import com.carter.springframework.util.ObjectUtils;
import com.carter.springframework.util.StringUtils;
import com.sun.istack.internal.Nullable;

import java.lang.reflect.Constructor;
import java.util.*;
import java.util.function.Supplier;

public abstract class AbstractBeanDefinition extends BeanMetadataAttributeAccessor implements CarterBeanDefinition,Cloneable {


    public static final String SCOPE_DEFAULT = "";


    public static final int AUTOWIRE_NO = AutowireCapableBeanFactory.AUTOWIRE_NO;


    public static final int AUTOWIRE_BY_NAME = AutowireCapableBeanFactory.AUTOWIRE_BY_NAME;


    public static final int AUTOWIRE_BY_TYPE = AutowireCapableBeanFactory.AUTOWIRE_BY_TYPE;


    public static final int AUTOWIRE_CONSTRUCTOR = AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR;


    @Deprecated
    public static final int AUTOWIRE_AUTODETECT = AutowireCapableBeanFactory.AUTOWIRE_AUTODETECT;


    public static final int DEPENDENCY_CHECK_NONE = 0;


    public static final int DEPENDENCY_CHECK_OBJECTS = 1;


    public static final int DEPENDENCY_CHECK_SIMPLE = 2;


    public static final int DEPENDENCY_CHECK_ALL = 3;

    public static final String INFER_METHOD = "(inferred)";


    @Nullable
    private volatile Object beanClass;

    @Nullable
    private String scope = SCOPE_DEFAULT;

    private boolean abstractFlag = false;

    @Nullable
    private Boolean lazyInit;

    private int autowireMode = AUTOWIRE_NO;

    private int dependencyCheck = DEPENDENCY_CHECK_NONE;

    @Nullable
    private String[] dependsOn;

    private boolean autowireCandidate = true;

    private boolean primary = false;

    private final Map<String, AutowireCandidateQualifier> qualifiers = new LinkedHashMap<>();

    @Nullable
    private Supplier<?> instanceSupplier;

    private boolean nonPublicAccessAllowed = true;

    private boolean lenientConstructorResolution = true;

    @Nullable
    private String factoryBeanName;

    @Nullable
    private String factoryMethodName;

    @Nullable
    private ConstructorArgumentValues constructorArgumentValues;

    @Nullable
    private MutablePropertyValues propertyValues;

    private MethodOverrides methodOverrides = new MethodOverrides();

    @Nullable
    private String initMethodName;

    @Nullable
    private String destroyMethodName;

    private boolean enforceInitMethod = true;

    private boolean enforceDestroyMethod = true;

    private boolean synthetic = false;

    private int role = CarterBeanDefinition.ROLE_APPLICATION;

    @Nullable
    private String description;

    @Nullable
    private Resource resource;

    protected AbstractBeanDefinition() {
        this(null, null);
    }

    /**
     * Create a new AbstractBeanDefinition with the given
     * constructor argument values and property values.
     */
    protected AbstractBeanDefinition(@Nullable ConstructorArgumentValues cargs, @Nullable MutablePropertyValues pvs) {
        this.constructorArgumentValues = cargs;
        this.propertyValues = pvs;
    }

    protected AbstractBeanDefinition(CarterBeanDefinition original) {
        setParentName(original.getParentName());
        setBeanClassName(original.getBeanClassName());
        setScope(original.getScope());
        setAbstract(original.isAbstract());
        setFactoryBeanName(original.getFactoryBeanName());
        setFactoryMethodName(original.getFactoryMethodName());
        setRole(original.getRole());
        setSource(original.getSource());
        copyAttributesFrom(original);

        if (original instanceof AbstractBeanDefinition) {
            AbstractBeanDefinition originalAbd = (AbstractBeanDefinition) original;
            if (originalAbd.hasBeanClass()) {
                setBeanClass(originalAbd.getBeanClass());
            }
            if (originalAbd.hasConstructorArgumentValues()) {
                setConstructorArgumentValues(new ConstructorArgumentValues(original.getConstructorArgumentValues()));
            }
            if (originalAbd.hasPropertyValues()) {
                setPropertyValues(new MutablePropertyValues(original.getPropertyValues()));
            }
            if (originalAbd.hasMethodOverrides()) {
                setMethodOverrides(new MethodOverrides(originalAbd.getMethodOverrides()));
            }
            Boolean lazyInit = originalAbd.getLazyInit();
            if (lazyInit != null) {
                setLazyInit(lazyInit);
            }
            setAutowireMode(originalAbd.getAutowireMode());
            setDependencyCheck(originalAbd.getDependencyCheck());
            setDependsOn(originalAbd.getDependsOn());
            setAutowireCandidate(originalAbd.isAutowireCandidate());
            setPrimary(originalAbd.isPrimary());
            copyQualifiersFrom(originalAbd);
            setInstanceSupplier(originalAbd.getInstanceSupplier());
            setNonPublicAccessAllowed(originalAbd.isNonPublicAccessAllowed());
            setLenientConstructorResolution(originalAbd.isLenientConstructorResolution());
            setInitMethodName(originalAbd.getInitMethodName());
            setEnforceInitMethod(originalAbd.isEnforceInitMethod());
            setDestroyMethodName(originalAbd.getDestroyMethodName());
            setEnforceDestroyMethod(originalAbd.isEnforceDestroyMethod());
            setSynthetic(originalAbd.isSynthetic());
            setResource(originalAbd.getResource());
        }
        else {
            setConstructorArgumentValues(new ConstructorArgumentValues(original.getConstructorArgumentValues()));
            setPropertyValues(new MutablePropertyValues(original.getPropertyValues()));
            setLazyInit(original.isLazyInit());
            setResourceDescription(original.getResourceDescription());
        }
    }


    /**
     * Override settings in this bean definition (presumably a copied parent
     * from a parent-child inheritance relationship) from the given bean
     * definition (presumably the child).
     * <ul>
     * <li>Will override beanClass if specified in the given bean definition.
     * <li>Will always take {@code abstract}, {@code scope},
     * {@code lazyInit}, {@code autowireMode}, {@code dependencyCheck},
     * and {@code dependsOn} from the given bean definition.
     * <li>Will add {@code constructorArgumentValues}, {@code propertyValues},
     * {@code methodOverrides} from the given bean definition to existing ones.
     * <li>Will override {@code factoryBeanName}, {@code factoryMethodName},
     * {@code initMethodName}, and {@code destroyMethodName} if specified
     * in the given bean definition.
     * </ul>
     */
    public void overrideFrom(CarterBeanDefinition other) {
        if (StringUtils.hasLength(other.getBeanClassName())) {
            setBeanClassName(other.getBeanClassName());
        }
        if (StringUtils.hasLength(other.getScope())) {
            setScope(other.getScope());
        }
        setAbstract(other.isAbstract());
        if (StringUtils.hasLength(other.getFactoryBeanName())) {
            setFactoryBeanName(other.getFactoryBeanName());
        }
        if (StringUtils.hasLength(other.getFactoryMethodName())) {
            setFactoryMethodName(other.getFactoryMethodName());
        }
        setRole(other.getRole());
        setSource(other.getSource());
        copyAttributesFrom(other);

        if (other instanceof AbstractBeanDefinition) {
            AbstractBeanDefinition otherAbd = (AbstractBeanDefinition) other;
            if (otherAbd.hasBeanClass()) {
                setBeanClass(otherAbd.getBeanClass());
            }
            if (otherAbd.hasConstructorArgumentValues()) {
                getConstructorArgumentValues().addArgumentValues(other.getConstructorArgumentValues());
            }
            if (otherAbd.hasPropertyValues()) {
                getPropertyValues().addPropertyValues(other.getPropertyValues());
            }
            if (otherAbd.hasMethodOverrides()) {
                getMethodOverrides().addOverrides(otherAbd.getMethodOverrides());
            }
            Boolean lazyInit = otherAbd.getLazyInit();
            if (lazyInit != null) {
                setLazyInit(lazyInit);
            }
            setAutowireMode(otherAbd.getAutowireMode());
            setDependencyCheck(otherAbd.getDependencyCheck());
            setDependsOn(otherAbd.getDependsOn());
            setAutowireCandidate(otherAbd.isAutowireCandidate());
            setPrimary(otherAbd.isPrimary());
            copyQualifiersFrom(otherAbd);
            setInstanceSupplier(otherAbd.getInstanceSupplier());
            setNonPublicAccessAllowed(otherAbd.isNonPublicAccessAllowed());
            setLenientConstructorResolution(otherAbd.isLenientConstructorResolution());
            if (otherAbd.getInitMethodName() != null) {
                setInitMethodName(otherAbd.getInitMethodName());
                setEnforceInitMethod(otherAbd.isEnforceInitMethod());
            }
            if (otherAbd.getDestroyMethodName() != null) {
                setDestroyMethodName(otherAbd.getDestroyMethodName());
                setEnforceDestroyMethod(otherAbd.isEnforceDestroyMethod());
            }
            setSynthetic(otherAbd.isSynthetic());
            setResource(otherAbd.getResource());
        }
        else {
            getConstructorArgumentValues().addArgumentValues(other.getConstructorArgumentValues());
            getPropertyValues().addPropertyValues(other.getPropertyValues());
            setLazyInit(other.isLazyInit());
            setResourceDescription(other.getResourceDescription());
        }
    }

    protected abstract boolean hasConstructorArgumentValues();

    /**
     * Apply the provided default values to this bean.
     * @param defaults the default settings to apply
     * @since 2.5
     */
    public void applyDefaults(BeanDefinitionDefaults defaults) {
        Boolean lazyInit = defaults.getLazyInit();
        if (lazyInit != null) {
            setLazyInit(lazyInit);
        }
        setAutowireMode(defaults.getAutowireMode());
        setDependencyCheck(defaults.getDependencyCheck());
        setInitMethodName(defaults.getInitMethodName());
        setEnforceInitMethod(false);
        setDestroyMethodName(defaults.getDestroyMethodName());
        setEnforceDestroyMethod(false);
    }


    /**
     * Specify the bean class name of this bean definition.
     */
    @Override
    public void setBeanClassName(@Nullable String beanClassName) {
        this.beanClass = beanClassName;
    }

    /**
     * Return the current bean class name of this bean definition.
     */
    @Override
    @Nullable
    public String getBeanClassName() {
        Object beanClassObject = this.beanClass;
        if (beanClassObject instanceof Class) {
            return ((Class<?>) beanClassObject).getName();
        }
        else {
            return (String) beanClassObject;
        }
    }

    /**
     * Specify the class for this bean.
     * @see #setBeanClassName(String)
     */
    public void setBeanClass(@Nullable Class<?> beanClass) {
        this.beanClass = beanClass;
    }


    public Class<?> getBeanClass() throws IllegalStateException {
        Object beanClassObject = this.beanClass;
        if (beanClassObject == null) {
            throw new IllegalStateException("No bean class specified on bean definition");
        }
        if (!(beanClassObject instanceof Class)) {
            throw new IllegalStateException(
                    "Bean class name [" + beanClassObject + "] has not been resolved into an actual Class");
        }
        return (Class<?>) beanClassObject;
    }

    /**
     * Return whether this definition specifies a bean class.
     * @see #getBeanClass()
     * @see #setBeanClass(Class)
     * @see #resolveBeanClass(ClassLoader)
     */
    public boolean hasBeanClass() {
        return (this.beanClass instanceof Class);
    }

    /**
     * Determine the class of the wrapped bean, resolving it from a
     * specified class name if necessary. Will also reload a specified
     * Class from its name when called with the bean class already resolved.
     * @param classLoader the ClassLoader to use for resolving a (potential) class name
     * @return the resolved bean class
     * @throws ClassNotFoundException if the class name could be resolved
     */
    @Nullable
    public Class<?> resolveBeanClass(@Nullable ClassLoader classLoader) throws ClassNotFoundException {
        String className = getBeanClassName();
        if (className == null) {
            return null;
        }
        Class<?> resolvedClass = ClassUtils.forName(className, classLoader);
        this.beanClass = resolvedClass;
        return resolvedClass;
    }
    
    /**@Override
    public ResolvableType getResolvableType() {
        return (hasBeanClass() ? ResolvableType.forClass(getBeanClass()) : ResolvableType.NONE);
    }*/
    
    @Override
    public void setScope(@Nullable String scope) {
        this.scope = scope;
    }

    /**
     * Return the name of the target scope for the bean.
     */
    @Override
    @Nullable
    public String getScope() {
        return this.scope;
    }

    /**
     * Return whether this a <b>Singleton</b>, with a single shared instance
     * returned from all calls.
     * @see #SCOPE_SINGLETON
     */
    @Override
    public boolean isSingleton() {
        return SCOPE_SINGLETON.equals(this.scope) || SCOPE_DEFAULT.equals(this.scope);
    }

    /**
     * Return whether this a <b>Prototype</b>, with an independent instance
     * returned for each call.
     * @see #SCOPE_PROTOTYPE
     */
    @Override
    public boolean isPrototype() {
        return SCOPE_PROTOTYPE.equals(this.scope);
    }

    /**
     * Set if this bean is "abstract", i.e. not meant to be instantiated itself but
     * rather just serving as parent for concrete child bean definitions.
     * <p>Default is "false". Specify true to tell the bean factory to not try to
     * instantiate that particular bean in any case.
     */
    public void setAbstract(boolean abstractFlag) {
        this.abstractFlag = abstractFlag;
    }

    /**
     * Return whether this bean is "abstract", i.e. not meant to be instantiated
     * itself but rather just serving as parent for concrete child bean definitions.
     */
    @Override
    public boolean isAbstract() {
        return this.abstractFlag;
    }

    /**
     * Set whether this bean should be lazily initialized.
     * <p>If {@code false}, the bean will get instantiated on startup by bean
     * factories that perform eager initialization of singletons.
     */
    @Override
    public void setLazyInit(boolean lazyInit) {
        this.lazyInit = lazyInit;
    }

    /**
     * Return whether this bean should be lazily initialized, i.e. not
     * eagerly instantiated on startup. Only applicable to a singleton bean.
     * @return whether to apply lazy-init semantics ({@code false} by default)
     */
    @Override
    public boolean isLazyInit() {
        return (this.lazyInit != null && this.lazyInit.booleanValue());
    }

    /**
     * Return whether this bean should be lazily initialized, i.e. not
     * eagerly instantiated on startup. Only applicable to a singleton bean.
     * @return the lazy-init flag if explicitly set, or {@code null} otherwise
     * @since 5.2
     */
    @Nullable
    public Boolean getLazyInit() {
        return this.lazyInit;
    }

    /**
     * Set the autowire mode. This determines whether any automagical detection
     * and setting of bean references will happen. Default is AUTOWIRE_NO
     * which means there won't be convention-based autowiring by name or type
     * (however, there may still be explicit annotation-driven autowiring).
     * @param autowireMode the autowire mode to set.
     * Must be one of the constants defined in this class.
     * @see #AUTOWIRE_NO
     * @see #AUTOWIRE_BY_NAME
     * @see #AUTOWIRE_BY_TYPE
     * @see #AUTOWIRE_CONSTRUCTOR
     * @see #AUTOWIRE_AUTODETECT
     */
    public void setAutowireMode(int autowireMode) {
        this.autowireMode = autowireMode;
    }

    /**
     * Return the autowire mode as specified in the bean definition.
     */
    public int getAutowireMode() {
        return this.autowireMode;
    }

    /**
     * Return the resolved autowire code,
     * (resolving AUTOWIRE_AUTODETECT to AUTOWIRE_CONSTRUCTOR or AUTOWIRE_BY_TYPE).
     * @see #AUTOWIRE_AUTODETECT
     * @see #AUTOWIRE_CONSTRUCTOR
     * @see #AUTOWIRE_BY_TYPE
     */
    public int getResolvedAutowireMode() {
        if (this.autowireMode == AUTOWIRE_AUTODETECT) {
            // Work out whether to apply setter autowiring or constructor autowiring.
            // If it has a no-arg constructor it's deemed to be setter autowiring,
            // otherwise we'll try constructor autowiring.
            Constructor<?>[] constructors = getBeanClass().getConstructors();
            for (Constructor<?> constructor : constructors) {
                if (constructor.getParameterCount() == 0) {
                    return AUTOWIRE_BY_TYPE;
                }
            }
            return AUTOWIRE_CONSTRUCTOR;
        }
        else {
            return this.autowireMode;
        }
    }

    /**
     * Set the dependency check code.
     * @param dependencyCheck the code to set.
     * Must be one of the four constants defined in this class.
     * @see #DEPENDENCY_CHECK_NONE
     * @see #DEPENDENCY_CHECK_OBJECTS
     * @see #DEPENDENCY_CHECK_SIMPLE
     * @see #DEPENDENCY_CHECK_ALL
     */
    public void setDependencyCheck(int dependencyCheck) {
        this.dependencyCheck = dependencyCheck;
    }

    /**
     * Return the dependency check code.
     */
    public int getDependencyCheck() {
        return this.dependencyCheck;
    }

    /**
     * Set the names of the beans that this bean depends on being initialized.
     * The bean factory will guarantee that these beans get initialized first.
     * <p>Note that dependencies are normally expressed through bean properties or
     * constructor arguments. This property should just be necessary for other kinds
     * of dependencies like statics (*ugh*) or database preparation on startup.
     */
    @Override
    public void setDependsOn(@Nullable String... dependsOn) {
        this.dependsOn = dependsOn;
    }

    /**
     * Return the bean names that this bean depends on.
     */
    @Override
    @Nullable
    public String[] getDependsOn() {
        return this.dependsOn;
    }

    /**
     * Set whether this bean is a candidate for getting autowired into some other bean.
     * <p>Note that this flag is designed to only affect type-based autowiring.
     * It does not affect explicit references by name, which will get resolved even
     * if the specified bean is not marked as an autowire candidate. As a consequence,
     * autowiring by name will nevertheless inject a bean if the name matches.
     * @see #AUTOWIRE_BY_TYPE
     * @see #AUTOWIRE_BY_NAME
     */
    @Override
    public void setAutowireCandidate(boolean autowireCandidate) {
        this.autowireCandidate = autowireCandidate;
    }

    /**
     * Return whether this bean is a candidate for getting autowired into some other bean.
     */
    @Override
    public boolean isAutowireCandidate() {
        return this.autowireCandidate;
    }

    /**
     * Set whether this bean is a primary autowire candidate.
     * <p>If this value is {@code true} for exactly one bean among multiple
     * matching candidates, it will serve as a tie-breaker.
     */
    @Override
    public void setPrimary(boolean primary) {
        this.primary = primary;
    }

    /**
     * Return whether this bean is a primary autowire candidate.
     */
    @Override
    public boolean isPrimary() {
        return this.primary;
    }
    
    public void addQualifier(AutowireCandidateQualifier qualifier) {
        this.qualifiers.put(qualifier.getTypeName(), qualifier);
    }

    /**
     * Return whether this bean has the specified qualifier.
     */
    public boolean hasQualifier(String typeName) {
        return this.qualifiers.containsKey(typeName);
    }

    /**
     * Return the qualifier mapped to the provided type name.
     */
    @Nullable
    public AutowireCandidateQualifier getQualifier(String typeName) {
        return this.qualifiers.get(typeName);
    }

    /**
     * Return all registered qualifiers.
     * @return the Set of {@link AutowireCandidateQualifier} objects.
     */
    public Set<AutowireCandidateQualifier> getQualifiers() {
        return new LinkedHashSet<>(this.qualifiers.values());
    }

    /**
     * Copy the qualifiers from the supplied AbstractBeanDefinition to this bean definition.
     * @param source the AbstractBeanDefinition to copy from
     */
    public void copyQualifiersFrom(AbstractBeanDefinition source) {
        Assert.notNull(source, "Source must not be null");
        this.qualifiers.putAll(source.qualifiers);
    }

    /**
     * Specify a callback for creating an instance of the bean,
     * as an alternative to a declaratively specified factory method.
     * <p>If such a callback is set, it will override any other constructor
     * or factory method metadata. However, bean property population and
     * potential annotation-driven injection will still apply as usual.
     * @since 5.0
     * @see #setConstructorArgumentValues(ConstructorArgumentValues)
     * @see #setPropertyValues(MutablePropertyValues)
     */
    public void setInstanceSupplier(@Nullable Supplier<?> instanceSupplier) {
        this.instanceSupplier = instanceSupplier;
    }

    /**
     * Return a callback for creating an instance of the bean, if any.
     * @since 5.0
     */
    @Nullable
    public Supplier<?> getInstanceSupplier() {
        return this.instanceSupplier;
    }

    /**
     * Specify whether to allow access to non-public constructors and methods,
     * for the case of externalized metadata pointing to those. The default is
     * {@code true}; switch this to {@code false} for public access only.
     * <p>This applies to constructor resolution, factory method resolution,
     * and also init/destroy methods. Bean property accessors have to be public
     * in any case and are not affected by this setting.
     * <p>Note that annotation-driven configuration will still access non-public
     * members as far as they have been annotated. This setting applies to
     * externalized metadata in this bean definition only.
     */
    public void setNonPublicAccessAllowed(boolean nonPublicAccessAllowed) {
        this.nonPublicAccessAllowed = nonPublicAccessAllowed;
    }

    /**
     * Return whether to allow access to non-public constructors and methods.
     */
    public boolean isNonPublicAccessAllowed() {
        return this.nonPublicAccessAllowed;
    }

    /**
     * Specify whether to resolve constructors in lenient mode ({@code true},
     * which is the default) or to switch to strict resolution (throwing an exception
     * in case of ambiguous constructors that all match when converting the arguments,
     * whereas lenient mode would use the one with the 'closest' type matches).
     */
    public void setLenientConstructorResolution(boolean lenientConstructorResolution) {
        this.lenientConstructorResolution = lenientConstructorResolution;
    }

    /**
     * Return whether to resolve constructors in lenient mode or in strict mode.
     */
    public boolean isLenientConstructorResolution() {
        return this.lenientConstructorResolution;
    }

    /**
     * Specify the factory bean to use, if any.
     * This the name of the bean to call the specified factory method on.
     * @see #setFactoryMethodName
     */
    @Override
    public void setFactoryBeanName(@Nullable String factoryBeanName) {
        this.factoryBeanName = factoryBeanName;
    }

    /**
     * Return the factory bean name, if any.
     */
    @Override
    @Nullable
    public String getFactoryBeanName() {
        return this.factoryBeanName;
    }

    /**
     * Specify a factory method, if any. This method will be invoked with
     * constructor arguments, or with no arguments if none are specified.
     * The method will be invoked on the specified factory bean, if any,
     * or otherwise as a static method on the local bean class.
     * @see #setFactoryBeanName
     * @see #setBeanClassName
     */
    @Override
    public void setFactoryMethodName(@Nullable String factoryMethodName) {
        this.factoryMethodName = factoryMethodName;
    }

    /**
     * Return a factory method, if any.
     */
    @Override
    @Nullable
    public String getFactoryMethodName() {
        return this.factoryMethodName;
    }

    /**
     * Specify constructor argument values for this bean.
     */
    public void setConstructorArgumentValues(ConstructorArgumentValues constructorArgumentValues) {
        this.constructorArgumentValues = constructorArgumentValues;
    }

    /**
     * Return constructor argument values for this bean (never {@code null}).
     */
    @Override
    public ConstructorArgumentValues getConstructorArgumentValues() {
        if (this.constructorArgumentValues == null) {
            this.constructorArgumentValues = new ConstructorArgumentValues();
        }
        return this.constructorArgumentValues;
    }


    /**
     * Return if there are constructor argument values defined for this bean.
     */
    /**@Override
    public boolean hasConstructorArgumentValues() {
        return (this.constructorArgumentValues != null && !this.constructorArgumentValues.isEmpty());
    }*/

    /**
     * Specify property values for this bean, if any.
     */
    public void setPropertyValues(MutablePropertyValues propertyValues) {
        this.propertyValues = propertyValues;
    }

    /**
     * Return property values for this bean (never {@code null}).
     */
    @Override
    public MutablePropertyValues getPropertyValues() {
        if (this.propertyValues == null) {
            this.propertyValues = new MutablePropertyValues();
        }
        return this.propertyValues;
    }

    /**
     * Return if there are property values values defined for this bean.
     * @since 5.0.2
     */
    public boolean hasPropertyValues() {
        return (this.propertyValues != null && !this.propertyValues.isEmpty());
    }

    /**
     * Specify method overrides for the bean, if any.
     */
    public void setMethodOverrides(MethodOverrides methodOverrides) {
        this.methodOverrides = methodOverrides;
    }

    /**
     * Return information about methods to be overridden by the IoC
     * container. This will be empty if there are no method overrides.
     * <p>Never returns {@code null}.
     */
    public MethodOverrides getMethodOverrides() {
        return this.methodOverrides;
    }

    /**
     * Return if there are method overrides defined for this bean.
     * @since 5.0.2
     */
    public boolean hasMethodOverrides() {
        return !this.methodOverrides.isEmpty();
    }

    /**
     * Set the name of the initializer method.
     * <p>The default is {@code null} in which case there is no initializer method.
     */
    @Override
    public void setInitMethodName(@Nullable String initMethodName) {
        this.initMethodName = initMethodName;
    }

    /**
     * Return the name of the initializer method.
     */
    @Override
    @Nullable
    public String getInitMethodName() {
        return this.initMethodName;
    }

    /**
     * Specify whether or not the configured initializer method is the default.
     * <p>The default value is {@code true} for a locally specified init method
     * but switched to {@code false} for a shared setting in a defaults section
     * (e.g. {@code bean init-method} versus {@code beans default-init-method}
     * level in XML) which might not apply to all contained bean definitions.
     * @see #setInitMethodName
     * @see #applyDefaults
     */
    public void setEnforceInitMethod(boolean enforceInitMethod) {
        this.enforceInitMethod = enforceInitMethod;
    }

    /**
     * Indicate whether the configured initializer method is the default.
     * @see #getInitMethodName()
     */
    public boolean isEnforceInitMethod() {
        return this.enforceInitMethod;
    }

    /**
     * Set the name of the destroy method.
     * <p>The default is {@code null} in which case there is no destroy method.
     */
    @Override
    public void setDestroyMethodName(@Nullable String destroyMethodName) {
        this.destroyMethodName = destroyMethodName;
    }

    /**
     * Return the name of the destroy method.
     */
    @Override
    @Nullable
    public String getDestroyMethodName() {
        return this.destroyMethodName;
    }

    /**
     * Specify whether or not the configured destroy method is the default.
     * <p>The default value is {@code true} for a locally specified destroy method
     * but switched to {@code false} for a shared setting in a defaults section
     * (e.g. {@code bean destroy-method} versus {@code beans default-destroy-method}
     * level in XML) which might not apply to all contained bean definitions.
     * @see #setDestroyMethodName
     * @see #applyDefaults
     */
    public void setEnforceDestroyMethod(boolean enforceDestroyMethod) {
        this.enforceDestroyMethod = enforceDestroyMethod;
    }

    /**
     * Indicate whether the configured destroy method is the default.
     * @see #getDestroyMethodName()
     */
    public boolean isEnforceDestroyMethod() {
        return this.enforceDestroyMethod;
    }

    /**
     * Set whether this bean definition is 'synthetic', that is, not defined
     * by the application itself (for example, an infrastructure bean such
     * as a helper for auto-proxying, created through {@code <aop:config>}).
     */
    public void setSynthetic(boolean synthetic) {
        this.synthetic = synthetic;
    }

    /**
     * Return whether this bean definition is 'synthetic', that is,
     * not defined by the application itself.
     */
    public boolean isSynthetic() {
        return this.synthetic;
    }

    /**
     * Set the role hint for this {@code CarterBeanDefinition}.
     */
    @Override
    public void setRole(int role) {
        this.role = role;
    }

    /**
     * Return the role hint for this {@code CarterBeanDefinition}.
     */
    @Override
    public int getRole() {
        return this.role;
    }

    /**
     * Set a human-readable description of this bean definition.
     */
    @Override
    public void setDescription(@Nullable String description) {
        this.description = description;
    }

    /**
     * Return a human-readable description of this bean definition.
     */
    @Override
    @Nullable
    public String getDescription() {
        return this.description;
    }

    /**
     * Set the resource that this bean definition came from
     * (for the purpose of showing context in case of errors).
     */
    public void setResource(@Nullable Resource resource) {
        this.resource = resource;
    }

    /**
     * Return the resource that this bean definition came from.
     */
    @Nullable
    public Resource getResource() {
        return this.resource;
    }

    /**
     * Set a description of the resource that this bean definition
     * came from (for the purpose of showing context in case of errors).
     */
    public void setResourceDescription(@Nullable String resourceDescription) {
        this.resource = (resourceDescription != null ? (Resource) new DescriptiveResource(resourceDescription) : null);
    }

    /**
     * Return a description of the resource that this bean definition
     * came from (for the purpose of showing context in case of errors).
     */
    @Override
    @Nullable
    public String getResourceDescription() {
        return (this.resource != null ? this.resource.getDescription() : null);
    }

    /**
     * Set the originating (e.g. decorated) CarterBeanDefinition, if any.
     */
    public void setOriginatingCarterBeanDefinition(CarterBeanDefinition originatingBd) {
        this.resource = (Resource) new BeanDefinitionResource(originatingBd);
    }

    /**
     * Return the originating CarterBeanDefinition, or {@code null} if none.
     * Allows for retrieving the decorated bean definition, if any.
     * <p>Note that this method returns the immediate originator. Iterate through the
     * originator chain to find the original CarterBeanDefinition as defined by the user.
     */
    @Nullable
    public CarterBeanDefinition getOriginatingCarterBeanDefinition() {
        return (this.resource instanceof BeanDefinitionResource ?
                ((BeanDefinitionResource) this.resource).getBeanDefinition() : null);
    }


    public void validate() throws Exception {
        if (hasMethodOverrides() && getFactoryMethodName() != null) {
            throw new Exception(
                    "Cannot combine factory method with container-generated method overrides: " +
                            "the factory method must create the concrete bean instance.");
        }
        if (hasBeanClass()) {
            prepareMethodOverrides();
        }
    }

    public void prepareMethodOverrides() throws Exception {
        // Check that lookup methods exist and determine their overloaded status.
        if (hasMethodOverrides()) {
            //getMethodOverrides().getOverrides().forEach(this::prepareMethodOverride);
        }
    }

    protected void prepareMethodOverride(MethodOverride mo) throws Exception {
        int count = ClassUtils.getMethodCountForName(getBeanClass(), mo.getMethodName());
        if (count == 0) {
            throw new Exception(
                    "Invalid method override: no method with name '" + mo.getMethodName() +
                            "' on class [" + getBeanClassName() + "]");
        }
        else if (count == 1) {
            // Mark override as not overloaded, to avoid the overhead of arg type checking.
            mo.setOverloaded(false);
        }
    }


    /**
     * Public declaration of Object's {@code clone()} method.
     * Delegates to {@link #cloneCarterBeanDefinition()}.
     * @see Object#clone()
     */
    @Override
    public Object clone() {
        return cloneCarterBeanDefinition();
    }

    /**
     * Clone this bean definition.
     * To be implemented by concrete subclasses.
     * @return the cloned bean definition object
     */
    public abstract AbstractBeanDefinition cloneCarterBeanDefinition();

    @Override
    public boolean equals(@Nullable Object other) {
        if (this == other) {
            return true;
        }
        if (!(other instanceof AbstractBeanDefinition)) {
            return false;
        }
        AbstractBeanDefinition that = (AbstractBeanDefinition) other;
        return (ObjectUtils.nullSafeEquals(getBeanClassName(), that.getBeanClassName()) &&
                ObjectUtils.nullSafeEquals(this.scope, that.scope) &&
                this.abstractFlag == that.abstractFlag &&
                this.lazyInit == that.lazyInit &&
                this.autowireMode == that.autowireMode &&
                this.dependencyCheck == that.dependencyCheck &&
                Arrays.equals(this.dependsOn, that.dependsOn) &&
                this.autowireCandidate == that.autowireCandidate &&
                ObjectUtils.nullSafeEquals(this.qualifiers, that.qualifiers) &&
                this.primary == that.primary &&
                this.nonPublicAccessAllowed == that.nonPublicAccessAllowed &&
                this.lenientConstructorResolution == that.lenientConstructorResolution &&
                ObjectUtils.nullSafeEquals(this.constructorArgumentValues, that.constructorArgumentValues) &&
                ObjectUtils.nullSafeEquals(this.propertyValues, that.propertyValues) &&
                ObjectUtils.nullSafeEquals(this.methodOverrides, that.methodOverrides) &&
                ObjectUtils.nullSafeEquals(this.factoryBeanName, that.factoryBeanName) &&
                ObjectUtils.nullSafeEquals(this.factoryMethodName, that.factoryMethodName) &&
                ObjectUtils.nullSafeEquals(this.initMethodName, that.initMethodName) &&
                this.enforceInitMethod == that.enforceInitMethod &&
                ObjectUtils.nullSafeEquals(this.destroyMethodName, that.destroyMethodName) &&
                this.enforceDestroyMethod == that.enforceDestroyMethod &&
                this.synthetic == that.synthetic &&
                this.role == that.role &&
                super.equals(other));
    }

    @Override
    public int hashCode() {
        int hashCode = ObjectUtils.nullSafeHashCode(getBeanClassName());
        hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.scope);
        hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.constructorArgumentValues);
        hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.propertyValues);
        hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.factoryBeanName);
        hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(this.factoryMethodName);
        hashCode = 29 * hashCode + super.hashCode();
        return hashCode;
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder("class [");
        sb.append(getBeanClassName()).append("]");
        sb.append("; scope=").append(this.scope);
        sb.append("; abstract=").append(this.abstractFlag);
        sb.append("; lazyInit=").append(this.lazyInit);
        sb.append("; autowireMode=").append(this.autowireMode);
        sb.append("; dependencyCheck=").append(this.dependencyCheck);
        sb.append("; autowireCandidate=").append(this.autowireCandidate);
        sb.append("; primary=").append(this.primary);
        sb.append("; factoryBeanName=").append(this.factoryBeanName);
        sb.append("; factoryMethodName=").append(this.factoryMethodName);
        sb.append("; initMethodName=").append(this.initMethodName);
        sb.append("; destroyMethodName=").append(this.destroyMethodName);
        if (this.resource != null) {
            sb.append("; defined in ").append(this.resource.getDescription());
        }
        return sb.toString();
    }
    
    
}
